. >> reporter: sergeant adam jack stepped on an ied while on patrol in afghanistan. >> without, like, the advances in technology, i feel that, you know, i wouldn't have come as far as i have. >> reporter: just down the hall, the apartment lab. >> that's where you learn to open a door again. unlock a lock. >> reporter: and patients from walter reed helped design this area, where they can test their prosthetics in private. any problems, they head to the lab across the hall. >> in minutes, they can get things like that taken care of. >> reporter: all they need now are the patients. >> it is rewarding to final see the finish line in sight. >> reporter: in bethesda, melissa melai, news4. >>> and coming up -- >> you can feel so much better throughout the day. you can do so much more. >> the workout that helps this actor shine on stage while flaunting his washboard absen. and how a father turns his son and how a [ man ] i gothis son this new citi thankyou card and started earning loads of points. you got a weather balloon with points? yes i did. [ man ] points i could use for just about anyt